Home / 388,529,646.80-582,719,820.60-115,909,307.60

Finding the Fourth Proportional to 388,529,646.80, 582,719,820.60 and 115,909,307.60

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Solution

The fourth proportional to 388,529,646.80, 582,719,820.60 and 115,909,307.60 is: 173,841,691.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,529,646.80 : 582,719,820.60 = 115,909,307.60 : x
  2. Step 2: Convert to fraction form
    388,529,646.80/582,719,820.60 = 115,909,307.60/x
  3. Step 3: Cross multiply
    388,529,646.80x = 582,719,820.60 × 115,909,307.60
  4. Step 4: Simplify right side
    388,529,646.80x = 67,542,650,930,542,216
  5. Step 5: Solve for x
    x = 67,542,650,930,542,216/388,529,646.80
  6. Step 6: Final answer
    x = 173,841,691.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.